Hi,
I think drawings should be part of showing any piece. People can see the how the design evolved and developed. I often do extensive drawings and designs of some of my pieces. The way I work, often making a hindered or so pieces and brazing and soldering them together, forces me to design and draw the piece to the last detail. I try to solve problems before they occur to save time. Here is a piece I created with the drawings showing the design process.
Dick